7 Bible Verses about Penalties For Serving Other Gods

Receive the curse when you do not listen to the commandments of Jehovah your God, but turn aside from the way that I command you today, by following other gods you have not known.

In one of the cities Jehovah your God is giving you, there may be a man or woman among you who is doing what Jehovah considers evil. This person may be disregarding the conditions of Jehovah's covenant. Some worship and bow down to other gods, the sun, the moon, or the whole army of heaven. I have forbidden this. If it is told you and you have heard of it, then you shall inquire thoroughly. If it is true and the thing certain that this detestable thing has been done in Israel,read more.
Bring that man or woman who has done this evil deed out to your gates. Stone the man or the woman to death. On the evidence and testimony of two witnesses or three witnesses, he who is to die shall be put to death. He shall not be put to death on the evidence of one witness. The witnesses must throw the first stone to put him to death, and afterward all the people. So you shall purge the evil from your midst.

The person who sacrifices to any god except Jehovah must be condemned and destroyed.

If your hearts turn away, and you do not listen, you might be tempted to bow down to other gods and worship them.

if you do not oppress the alien, the orphan, or the widow, and do not shed innocent blood in this place, nor walk after other gods to your own ruin,

Do not allow them to live in your land for they will make you sin against me. If you serve their gods it will be a snare to you.

Any prophet who dares to say something in my name that I did not command him to say or who speaks in the name of other gods must die.